کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4319766 1613292 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Induction of orientation-specific LTP-like changes in human visual evoked potentials by rapid sensory stimulation
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب سلولی و مولکولی
پیش نمایش صفحه اول مقاله
Induction of orientation-specific LTP-like changes in human visual evoked potentials by rapid sensory stimulation
چکیده انگلیسی

Recent research suggests that rapid visual stimulation can induce long-term potentiation-like effects non-invasively in humans. However, to date, this research has provided only limited evidence for input-specificity, a fundamental property of cellular long-term potentiation. In the present study we extend the evidence for input-specificity by investigating the effect of stimulus orientation. We use sine wave gratings of two different orientations to show that rapid visual stimulation can induce orientation-specific potentiation, as indexed by changes in the amplitude of a late phase of the N1 complex of the visual-evoked potential. This result suggests that discrete populations of orientation-tuned neurons can be selectively potentiated by rapid visual stimulation. Furthermore, our results support earlier studies that have suggested that the locus of potentiation induced by rapid visual stimulation is visual cortex.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research Bulletin - Volume 76, Issues 1–2, 15 May 2008, Pages 97–101
نویسندگان
, , , , , , ,